Filter housing



FIG. 1 is a perspective view of a filter housing showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end elevational view thereof, the opposite end being identical. 

The ornamental design for a filter housing, as shown and described. 